Transformer



FIG. 1 is a perspective view of a transformer embodying the invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view. 

The ornamental design for a transformer, as shown and described. 